Investigation of Ripple Formation in Aluminum Flat Products Produced by Different Types of Twin Roll Casters

AluminumAluminum flat products are currently produced by twin-roll castingTwin Roll Casting and direct cooled castingCasting methodsMethod. Unlike the direct cooled castingCasting methodMethod, the solidification rateSolidification rate is quite high in theTwin-roll casting twin-roll castingCasting methodMethod. SurfaceSurface defectsDefects may occur due to production at high solidification ratesSolidification rate and metal feeding at high flow rates. In this study, the formationFormation mechanism of ripple trace, which is one of the surfaceSurface defectsDefects in theTwin-roll casting twin-roll castingCasting process, was investigated. The differences of the related defectDefects depending on the process parameters (alloyAlloys, castingCasting speedSpeed, metal level, temperature, etc.) in 15° inclined and horizontal twin-roll castingTwin Roll Casting lines were compared and reduced.